High strength substructure reinforcement for crowns and bridges
US7690920B2 · kind B2 · utility
1Cited by
11References
21Claims
0Family size
Inventors
Key dates
| Filing date | Apr 15, 2005 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Jun 21, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C13/0022
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A reinforcement for a dental restoration substructure is provided. The reinforcement is a generally annular structure that protrudes from the body of the substructure generally near an occlusal portion of the restoration. The annular structure provides a support for veneering porcelain at the location of the greatest thickness of the porcelain and at the location where occlusal stress is applied, and fractures of veneering porcelain are commonly experienced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.